typedef struct Vp3Fragment {
int16_t dc;
uint8_t coding_method;
- int8_t motion_x;
- int8_t motion_y;
uint8_t qpi;
} Vp3Fragment;
int theora, theora_tables;
int version;
int width, height;
+ int chroma_x_shift, chroma_y_shift;
AVFrame golden_frame;
AVFrame last_frame;
AVFrame current_frame;
int macroblock_height;
int fragment_count;
- int fragment_width;
- int fragment_height;
+ int fragment_width[2];
+ int fragment_height[2];
Vp3Fragment *all_fragments;
int fragment_start[3];
int data_offset[3];
+ int8_t (*motion_val[2])[2];
+
ScanTable scantable;
/* tables */
for (plane = 0; plane < 3; plane++) {
int sb_width = plane ? s->c_superblock_width : s->y_superblock_width;
int sb_height = plane ? s->c_superblock_height : s->y_superblock_height;
- int frag_width = s->fragment_width >> !!plane;
- int frag_height = s->fragment_height >> !!plane;
+ int frag_width = s->fragment_width[!!plane];
+ int frag_height = s->fragment_height[!!plane];
for (sb_y = 0; sb_y < sb_height; sb_y++)
for (sb_x = 0; sb_x < sb_width; sb_x++)
/* if the fragment is in bounds, check its coding status */
current_fragment = s->superblock_fragments[i * 16 + j];
- if (current_fragment >= s->fragment_count) {
- av_log(s->avctx, AV_LOG_ERROR, " vp3:unpack_superblocks(): bad fragment number (%d >= %d)\n",
- current_fragment, s->fragment_count);
- return 1;
- }
if (current_fragment != -1) {
int coded = s->superblock_coding[i];
int coding_mode;
int custom_mode_alphabet[CODING_MODE_COUNT];
const int *alphabet;
+ Vp3Fragment *frag;
if (s->keyframe) {
for (i = 0; i < s->fragment_count; i++)
/* coding modes are only stored if the macroblock has at least one
* luma block coded, otherwise it must be INTER_NO_MV */
for (k = 0; k < 4; k++) {
- current_fragment = BLOCK_Y*s->fragment_width + BLOCK_X;
+ current_fragment = BLOCK_Y*s->fragment_width[0] + BLOCK_X;
if (s->all_fragments[current_fragment].coding_method != MODE_COPY)
break;
}
s->macroblock_coding[current_macroblock] = coding_mode;
for (k = 0; k < 4; k++) {
- current_fragment =
- BLOCK_Y*s->fragment_width + BLOCK_X;
- if (s->all_fragments[current_fragment].coding_method !=
- MODE_COPY)
- s->all_fragments[current_fragment].coding_method =
- coding_mode;
+ frag = s->all_fragments + BLOCK_Y*s->fragment_width[0] + BLOCK_X;
+ if (frag->coding_method != MODE_COPY)
+ frag->coding_method = coding_mode;
}
- for (k = 0; k < 2; k++) {
- current_fragment = s->fragment_start[k+1] +
- mb_y*(s->fragment_width>>1) + mb_x;
- if (s->all_fragments[current_fragment].coding_method !=
- MODE_COPY)
- s->all_fragments[current_fragment].coding_method =
- coding_mode;
+
+#define SET_CHROMA_MODES \
+ if (frag[s->fragment_start[1]].coding_method != MODE_COPY) \
+ frag[s->fragment_start[1]].coding_method = coding_mode;\
+ if (frag[s->fragment_start[2]].coding_method != MODE_COPY) \
+ frag[s->fragment_start[2]].coding_method = coding_mode;
+
+ if (s->chroma_y_shift) {
+ frag = s->all_fragments + mb_y*s->fragment_width[1] + mb_x;
+ SET_CHROMA_MODES
+ } else if (s->chroma_x_shift) {
+ frag = s->all_fragments + 2*mb_y*s->fragment_width[1] + mb_x;
+ for (k = 0; k < 2; k++) {
+ SET_CHROMA_MODES
+ frag += s->fragment_width[1];
+ }
+ } else {
+ for (k = 0; k < 4; k++) {
+ frag = s->all_fragments + BLOCK_Y*s->fragment_width[1] + BLOCK_X;
+ SET_CHROMA_MODES
+ }
}
}
}
{
int j, k, sb_x, sb_y;
int coding_mode;
- int motion_x[6];
- int motion_y[6];
+ int motion_x[4];
+ int motion_y[4];
int last_motion_x = 0;
int last_motion_y = 0;
int prior_last_motion_x = 0;
int prior_last_motion_y = 0;
int current_macroblock;
int current_fragment;
+ int frag;
if (s->keyframe)
return 0;
- memset(motion_x, 0, 6 * sizeof(int));
- memset(motion_y, 0, 6 * sizeof(int));
-
/* coding mode 0 is the VLC scheme; 1 is the fixed code scheme */
coding_mode = get_bits1(gb);
/* fetch 4 vectors from the bitstream, one for each
* Y fragment, then average for the C fragment vectors */
- motion_x[4] = motion_y[4] = 0;
for (k = 0; k < 4; k++) {
- current_fragment = BLOCK_Y*s->fragment_width + BLOCK_X;
+ current_fragment = BLOCK_Y*s->fragment_width[0] + BLOCK_X;
if (s->all_fragments[current_fragment].coding_method != MODE_COPY) {
if (coding_mode == 0) {
motion_x[k] = motion_vector_table[get_vlc2(gb, s->motion_vector_vlc.table, 6, 2)];
motion_x[k] = 0;
motion_y[k] = 0;
}
- motion_x[4] += motion_x[k];
- motion_y[4] += motion_y[k];
}
-
- motion_x[5]=
- motion_x[4]= RSHIFT(motion_x[4], 2);
- motion_y[5]=
- motion_y[4]= RSHIFT(motion_y[4], 2);
break;
case MODE_INTER_LAST_MV:
/* assign the motion vectors to the correct fragments */
for (k = 0; k < 4; k++) {
current_fragment =
- BLOCK_Y*s->fragment_width + BLOCK_X;
+ BLOCK_Y*s->fragment_width[0] + BLOCK_X;
if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
- s->all_fragments[current_fragment].motion_x = motion_x[k];
- s->all_fragments[current_fragment].motion_y = motion_y[k];
+ s->motion_val[0][current_fragment][0] = motion_x[k];
+ s->motion_val[0][current_fragment][1] = motion_y[k];
} else {
- s->all_fragments[current_fragment].motion_x = motion_x[0];
- s->all_fragments[current_fragment].motion_y = motion_y[0];
+ s->motion_val[0][current_fragment][0] = motion_x[0];
+ s->motion_val[0][current_fragment][1] = motion_y[0];
}
}
- for (k = 0; k < 2; k++) {
- current_fragment = s->fragment_start[k+1] +
- mb_y*(s->fragment_width>>1) + mb_x;
+
+ if (s->chroma_y_shift) {
+ if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
+ motion_x[0] = RSHIFT(motion_x[0] + motion_x[1] + motion_x[2] + motion_x[3], 2);
+ motion_y[0] = RSHIFT(motion_y[0] + motion_y[1] + motion_y[2] + motion_y[3], 2);
+ }
+ motion_x[0] = (motion_x[0]>>1) | (motion_x[0]&1);
+ motion_y[0] = (motion_y[0]>>1) | (motion_y[0]&1);
+ frag = mb_y*s->fragment_width[1] + mb_x;
+ s->motion_val[1][frag][0] = motion_x[0];
+ s->motion_val[1][frag][1] = motion_y[0];
+ } else if (s->chroma_x_shift) {
if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
- s->all_fragments[current_fragment].motion_x = motion_x[k+4];
- s->all_fragments[current_fragment].motion_y = motion_y[k+4];
+ motion_x[0] = RSHIFT(motion_x[0] + motion_x[1], 1);
+ motion_y[0] = RSHIFT(motion_y[0] + motion_y[1], 1);
+ motion_x[1] = RSHIFT(motion_x[2] + motion_x[3], 1);
+ motion_y[1] = RSHIFT(motion_y[2] + motion_y[3], 1);
} else {
- s->all_fragments[current_fragment].motion_x = motion_x[0];
- s->all_fragments[current_fragment].motion_y = motion_y[0];
+ motion_x[1] = motion_x[0];
+ motion_y[1] = motion_y[0];
+ }
+ motion_x[0] = (motion_x[0]>>1) | (motion_x[0]&1);
+ motion_x[1] = (motion_x[1]>>1) | (motion_x[1]&1);
+
+ frag = 2*mb_y*s->fragment_width[1] + mb_x;
+ for (k = 0; k < 2; k++) {
+ s->motion_val[1][frag][0] = motion_x[k];
+ s->motion_val[1][frag][1] = motion_y[k];
+ frag += s->fragment_width[1];
+ }
+ } else {
+ for (k = 0; k < 4; k++) {
+ frag = BLOCK_Y*s->fragment_width[1] + BLOCK_X;
+ if (s->macroblock_coding[current_macroblock] == MODE_INTER_FOURMV) {
+ s->motion_val[1][frag][0] = motion_x[k];
+ s->motion_val[1][frag][1] = motion_y[k];
+ } else {
+ s->motion_val[1][frag][0] = motion_x[0];
+ s->motion_val[1][frag][1] = motion_y[0];
+ }
}
}
}
0, residual_eob_run);
/* reverse prediction of the Y-plane DC coefficients */
- reverse_dc_prediction(s, 0, s->fragment_width, s->fragment_height);
+ reverse_dc_prediction(s, 0, s->fragment_width[0], s->fragment_height[0]);
/* unpack the C plane DC coefficients */
residual_eob_run = unpack_vlcs(s, gb, &s->dc_vlc[dc_c_table], 0,
if (!(s->avctx->flags & CODEC_FLAG_GRAY))
{
reverse_dc_prediction(s, s->fragment_start[1],
- s->fragment_width / 2, s->fragment_height / 2);
+ s->fragment_width[1], s->fragment_height[1]);
reverse_dc_prediction(s, s->fragment_start[2],
- s->fragment_width / 2, s->fragment_height / 2);
+ s->fragment_width[1], s->fragment_height[1]);
}
/* fetch the AC table indexes */
int x, y;
int *bounding_values= s->bounding_values_array+127;
- int width = s->fragment_width >> !!plane;
- int height = s->fragment_height >> !!plane;
+ int width = s->fragment_width[!!plane];
+ int height = s->fragment_height[!!plane];
int fragment = s->fragment_start [plane] + ystart * width;
int stride = s->current_frame.linesize[plane];
uint8_t *plane_data = s->current_frame.data [plane];
uint8_t * last_plane = s-> last_frame.data [plane] + s->data_offset[plane];
uint8_t *golden_plane = s-> golden_frame.data [plane] + s->data_offset[plane];
int stride = s->current_frame.linesize[plane];
- int plane_width = s->width >> !!plane;
- int plane_height = s->height >> !!plane;
+ int plane_width = s->width >> (plane && s->chroma_x_shift);
+ int plane_height = s->height >> (plane && s->chroma_y_shift);
+ int8_t (*motion_val)[2] = s->motion_val[!!plane];
- int sb_x, sb_y = slice << !plane;
- int slice_height = sb_y + (plane ? 1 : 2);
+ int sb_x, sb_y = slice << (!plane && s->chroma_y_shift);
+ int slice_height = sb_y + 1 + (!plane && s->chroma_y_shift);
int slice_width = plane ? s->c_superblock_width : s->y_superblock_width;
- int fragment_width = s->fragment_width >> !!plane;
- int fragment_height = s->fragment_height >> !!plane;
+ int fragment_width = s->fragment_width[!!plane];
+ int fragment_height = s->fragment_height[!!plane];
int fragment_start = s->fragment_start[plane];
if (!s->flipped_image) stride = -stride;
if ((s->all_fragments[i].coding_method > MODE_INTRA) &&
(s->all_fragments[i].coding_method != MODE_USING_GOLDEN)) {
int src_x, src_y;
- motion_x = s->all_fragments[i].motion_x;
- motion_y = s->all_fragments[i].motion_y;
- if(plane){
- motion_x= (motion_x>>1) | (motion_x&1);
- motion_y= (motion_y>>1) | (motion_y&1);
- }
+ motion_x = motion_val[y*fragment_width + x][0];
+ motion_y = motion_val[y*fragment_width + x][1];
src_x= (motion_x>>1) + 8*x;
src_y= (motion_y>>1) + 8*y;
int i, inter, plane;
int c_width;
int c_height;
+ int y_fragment_count, c_fragment_count;
if (avctx->codec_tag == MKTAG('V','P','3','0'))
s->version = 0;
s->avctx = avctx;
s->width = FFALIGN(avctx->width, 16);
s->height = FFALIGN(avctx->height, 16);
- avctx->pix_fmt = PIX_FMT_YUV420P;
+ if (avctx->pix_fmt == PIX_FMT_NONE)
+ avctx->pix_fmt = PIX_FMT_YUV420P;
avctx->chroma_sample_location = AVCHROMA_LOC_CENTER;
if(avctx->idct_algo==FF_IDCT_AUTO)
avctx->idct_algo=FF_IDCT_VP3;
for (i = 0; i < 3; i++)
s->qps[i] = -1;
+ avcodec_get_chroma_sub_sample(avctx->pix_fmt, &s->chroma_x_shift, &s->chroma_y_shift);
+
s->y_superblock_width = (s->width + 31) / 32;
s->y_superblock_height = (s->height + 31) / 32;
s->y_superblock_count = s->y_superblock_width * s->y_superblock_height;
/* work out the dimensions for the C planes */
- c_width = s->width / 2;
- c_height = s->height / 2;
+ c_width = s->width >> s->chroma_x_shift;
+ c_height = s->height >> s->chroma_y_shift;
s->c_superblock_width = (c_width + 31) / 32;
s->c_superblock_height = (c_height + 31) / 32;
s->c_superblock_count = s->c_superblock_width * s->c_superblock_height;
s->macroblock_height = (s->height + 15) / 16;
s->macroblock_count = s->macroblock_width * s->macroblock_height;
- s->fragment_width = s->width / FRAGMENT_PIXELS;
- s->fragment_height = s->height / FRAGMENT_PIXELS;
+ s->fragment_width[0] = s->width / FRAGMENT_PIXELS;
+ s->fragment_height[0] = s->height / FRAGMENT_PIXELS;
+ s->fragment_width[1] = s->fragment_width[0] >> s->chroma_x_shift;
+ s->fragment_height[1] = s->fragment_height[0] >> s->chroma_y_shift;
/* fragment count covers all 8x8 blocks for all 3 planes */
- s->fragment_count = s->fragment_width * s->fragment_height * 3 / 2;
- s->fragment_start[1] = s->fragment_width * s->fragment_height;
- s->fragment_start[2] = s->fragment_width * s->fragment_height * 5 / 4;
+ y_fragment_count = s->fragment_width[0] * s->fragment_height[0];
+ c_fragment_count = s->fragment_width[1] * s->fragment_height[1];
+ s->fragment_count = y_fragment_count + 2*c_fragment_count;
+ s->fragment_start[1] = y_fragment_count;
+ s->fragment_start[2] = y_fragment_count + c_fragment_count;
s->all_fragments = av_malloc(s->fragment_count * sizeof(Vp3Fragment));
s->coded_fragment_list[0] = av_malloc(s->fragment_count * sizeof(int));
s->dct_tokens_base = av_malloc(64*s->fragment_count * sizeof(*s->dct_tokens_base));
+ s->motion_val[0] = av_malloc(y_fragment_count * sizeof(*s->motion_val[0]));
+ s->motion_val[1] = av_malloc(c_fragment_count * sizeof(*s->motion_val[1]));
+
if (!s->superblock_coding || !s->all_fragments || !s->dct_tokens_base ||
- !s->coded_fragment_list[0]) {
+ !s->coded_fragment_list[0] || !s->motion_val[0] || !s->motion_val[1]) {
vp3_decode_end(avctx);
return -1;
}
}
for (i = 0; i < 3; i++) {
+ int height = s->height >> (i && s->chroma_y_shift);
if (s->flipped_image)
s->data_offset[i] = 0;
else
- s->data_offset[i] = ((s->height>>!!i)-1) * s->current_frame.linesize[i];
+ s->data_offset[i] = (height-1) * s->current_frame.linesize[i];
}
s->last_slice_end = 0;
// filter the last row
for (i = 0; i < 3; i++) {
- int row = (s->height >> (3+!!i)) - 1;
+ int row = (s->height >> (3+(i && s->chroma_y_shift))) - 1;
apply_loop_filter(s, i, row, row+1);
}
vp3_draw_horiz_band(s, s->height);
av_free(s->dct_tokens_base);
av_free(s->superblock_fragments);
av_free(s->macroblock_coding);
+ av_free(s->motion_val[0]);
+ av_free(s->motion_val[1]);
for (i = 0; i < 16; i++) {
free_vlc(&s->dc_vlc[i]);
}
#if CONFIG_THEORA_DECODER
+static const enum PixelFormat theora_pix_fmts[4] = {
+ PIX_FMT_YUV420P, PIX_FMT_NONE, PIX_FMT_YUV422P, PIX_FMT_YUV444P
+};
+
static int theora_decode_header(AVCodecContext *avctx, GetBitContext *gb)
{
Vp3DecodeContext *s = avctx->priv_data;
if (s->theora >= 0x030200)
{
skip_bits(gb, 5); /* keyframe frequency force */
- skip_bits(gb, 2); /* pixel format: 420,res,422,444 */
+ avctx->pix_fmt = theora_pix_fmts[get_bits(gb, 2)];
skip_bits(gb, 3); /* reserved */
}
AVCodec theora_decoder = {
"theora",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_THEORA,
sizeof(Vp3DecodeContext),
theora_decode_init,
AVCodec vp3_decoder = {
"vp3",
- CODEC_TYPE_VIDEO,
+ AVMEDIA_TYPE_VIDEO,
CODEC_ID_VP3,
sizeof(Vp3DecodeContext),
vp3_decode_init,
projects / ffmpeg / blobdiff